package file;

import java.io.File;

public class Demo {

	public static void main(String[] args) {
		File[] f=File.listRoots();
		for(int i=0;i<f.length;i++){
			System.out.println(f[i].getPath());
			
		}
		File[] ff=f[3].listFiles();
		for (File ef:ff) {
			System.out.println(ef.getName());
			
		}

	}

}
